trickle

n.水滴、細流
a small amount of liquid that is flowing slowly in a thin line

A trickle of melted butter made its way down his chin.

v.滴下、細細地流、緩慢而零星地進入／離開／返回（等等）
to arrive or move somewhere slowly and gradually, in small numbers

As trickled of tourists slowly returns to Egypt the floating nightclubs along the Nile are back in business.